Magnetic pick-up device for stringed musical instrument

• US 20020073829A1
• Filed: 08/22/2001
• Published: 06/20/2002
• Est. Priority Date: 12/14/2000
• Status: Active Grant

• Current Assignee: Giovanni Gaglio
• Original Assignee: Giovanni Gaglio
• Inventors: Gaglio, Giovanni
• Granted Patent: US 6,476,309 B2
• Time in Patent Office: Days
• US Class Current: 84/726
• CPC Class Codes: G10H 2220/505 Dual coil electrodynamic string transducer, e.g. for humbucking, to cancel out parasitic magnetic fields
• CPC Class Codes: G10H 3/181 Details of pick-up assemblies

Abstract

A magnetic pick-up device for stringed musical instrument, comprising at least one permanent magnetic element (1), round which a coil (4-5) is wound, and a string (C) of the musical instrument, being part of the magnetic circuit including said permanent magnetic element (1), so that the vibrations of the string (C) change the reluctance of the magnetic circuit and generate an induced electromotive force in the coil (4-5) that is sent to a power amplifier (2). The coil (4-5) is constituted by a double-lead winding, each extremity (7-8) of which has one end being connected to the power amplifier and the other end being free.

Claims

1. A magnetic pick-up device for stringed musical instrument, comprising at least one permanent magnetic element, round which a coil is wound, and a string of the musical instrument, being part of the magnetic circuit including said permanent magnetic element, so that the vibrations of the string change the reluctance of the magnetic circuit and generate an induced electromotive force in the coil that is sent to a power amplifier, characterized by the fact that said coil is constituted by a double-lead winding, each extremity of which has one end being connected to the power amplifier and the other end being free.

2. The magnetic pick-up device according to claim 1, characterized by the fact that the double-lead winding consists of two side by side, insulated leads, wound in with same-sense coaxial turns.

3. The magnetic pick-up device according to claim 1, characterized by the fact that the double-lead winding consists of two insulated leads, twisted together and wound in with same-sense coaxial turns.

4. The magnetic pick-up device according to claim 1, characterized by the fact that the free ends of the double-lead winding are connected to the ends of a resistor.

5. The magnetic pick-up device according to claim 4, characterized by the fact that said resistor is a fixed resistor.

6. The magnetic pick-up device according to claim 4, characterized by the fact that said resistor is a variable resistor.